ON THE SYSTEMATIC POSITION OF ZEUGLODON. 5 
But if we sketch a cervical vertebra of Zeuglodon, as figured by MUuuzr, we 
Fig. 4. CrrvicaAL VERTEBRA OF ZEUGLODON. 
(After J. Mixer.) 
find it quite unlike the cervical vertebra of any Cetacean, even of Platanista: the 
transverse processes, the lateral foramina, the shape of the neural canal are totally 
different, but agree almost line for line with the cervical vertebra of our common 
Phoca vitulina. 
The characters of the atlas and axis need not be recited in detail. It may be 
simply said that the axis with its distinct odontoid process is quite unlike a 
Cetacean’s ; and that the atlas is entirely Seal-like in its broad transverse processes, 
pierced by a foramen, the semilunar form of its odontoid space, and in the shape of 
the glenoid cavities which agree with the condylar surfaces above described. 
Dames, in a recent paper,* shows that the odontoid has on each side near the point 
a long oval groove with a narrow smooth ridge below, and that below the articular 
surface for the third cervical vertebra is a median excavation, all of which characters 
are minutely reproduced in the Pinnipedia. 
Fig. 5. Dorsat VERTEBRA OF ZEUGLODON (posterior view). 
(After J. MULLER.) 
*W. Dames. Sitzungsber. K. Akad. Wissensch. Berlin, 1883. p. 129 
